title: Nonlinear THz conductivity dynamics in P-type CVD-grown graphene.
abstract: We report strong THz-induced transparency in CVD-grown graphene where 92-96% of the peak-field is transmitted compared to 74% at lower field strength. Time-resolved THz pump/THz probe studies reveal that the absorption recovers in 2-3 ps. The induced transparency is believed to arise from nonlinear pumping of carriers in graphene which suppresses the mobility and consequently the conductivity in a spectral region where the light-matter interaction is particularly strong.
authors.affiliation: Department of Chemistry, Massachusetts Institute of Technology , Cambridge, Massachusetts, United States.
authors.forename: Harold Y
authors.initials: HY
authors.lastname: Hwang
authors.forename: Nathaniel C
authors.initials: NC
authors.lastname: Brandt
authors.forename: Hootan
authors.initials: H
authors.lastname: Farhat
authors.forename: Allen L
authors.initials: AL
authors.lastname: Hsu
authors.forename: Jing
authors.initials: J
authors.lastname: Kong
authors.forename: Keith A
authors.initials: KA
authors.lastname: Nelson